Kimi K1.5vsGPT-4 Turbo
Kimi K1.5 | GPT-4 Turbo | |
|---|---|---|
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 128k | 128k |
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $10.00 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $30.00 |
| BenchmarksPublished by one model only | ||
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 42.5% |
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jan 20 2025 | Nov 6 2023 |
| Access | Proprietary | Proprietary |
Other comparisons
Frequently asked questions
Kimi K1.5 and GPT-4 Turbo don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only GPT-4 Turbo has a verified first-party API price: $10.00 per million input tokens and $30.00 per million output tokens. No pay-as-you-go API rate is tracked for Kimi K1.5. GPT-4 Turbo shipped 441 days before Kimi K1.5, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (Kimi K1.5) vs 128k (GPT-4 Turbo).
Direct benchmark comparisons are unavailable — Kimi K1.5 and GPT-4 Turbo don't publish scores on any of the same benchmarks.
Kimi K1.5 was released by Moonshot AI on Jan 20 2025.
GPT-4 Turbo was released by OpenAI on Nov 6 2023.
Only GPT-4 Turbo has a verified first-party API price: $10.00 per million input tokens and $30.00 per million output tokens. No pay-as-you-go API rate is tracked for Kimi K1.5. Rates are pay-as-you-go API prices verified on August 18, 2026.
Kimi K1.5 has a 128k context window; GPT-4 Turbo has 128k.